公开(公告)号：US20040173189A1

公开(公告)日：2004-09-09

申请号：US10798575

申请日：2004-03-12

申请人： Bosch Automotive Systems Corporation

发明人： Yusuke Fukuhara ,  Nobuo Aoki ,  Koji Hatanaka

IPC分类号： F02M037/04

CPC分类号： F02M37/0029 ,  F02M37/0047 ,  F02M37/04 ,  F02M59/102 ,  F02M59/366 ,  F02M63/0225

摘要： A fuel feed pump is provided that has a fuel flow-rate regulating valve, on the inlet side. The fuel flow-rate regulating valve includes a housing with a fuel inlet port and a fuel outlet port, a valve mechanism for controlling the flow rate of the fuel from the inlet port to the outlet port, and a regulating mechanism for regulating a backpressure to control the position of a needle valve of the valve mechanism in response to a system pressure, to thereby control the flow rate by controlling the fuel flow through an opening provided in a valve chamber. This arrangement makes it difficult for contamination to accumulate, and also enables a low-cost implementation.

摘要翻译： 提供了一种在入口侧具有燃料流量调节阀的燃料供给泵。 燃料流量调节阀包括具有燃料入口和燃料出口的壳体，用于控制燃料从入口到出口的流量的阀机构和用于调节背压的调节机构 响应于系统压力来控制阀机构的针阀的位置，从而通过控制通过设置在阀室中的开口的燃料流量来控制流量。 这种布置使得难以累积污染，并且还能够实现低成本。

公开(公告)号：US20030230931A1

公开(公告)日：2003-12-18

申请号：US10327087

申请日：2002-12-24

申请人： BOSCH AUTOMOTIVE SYSTEMS CORPORATION

发明人： Satoru Watanabe ,  Hidefumi Inoue

IPC分类号： B60T008/34

CPC分类号： B60T8/3275 ,  B60T13/57

摘要： In a negative pressure boosting device of the present invention, upon depression of a pedal at a normal speed, an input shaft 11 and a valve plunger 10 move forward to close a vacuum valve 15 and open an atmospheric Valve 16 and a power piston 5, a valve body 4, and an output shaft 24 move forward. In the initial stage of operation, hooks 27c and 31a are not engaged with each other so that a cylindrical member 27 does not move forward, thereby shortening the stroke of the input shaft 11 as compared to a conventional one. Upon rapid depression of the pedal, a press face 10a presses a pressed face 27e so as to deform an engaging arm portion 27b, thereby disengaging the hooks 27c and 31a from each other. The cylindrical member 27 is moved backward by a spring 30 to push a vacuum valve portion 12b so that the atmospheric valve portion 12a is spaced apart from the atmospheric valve seat 14 more rapidly than that of the service braking, thereby increasing the jumping amount and thus rapidly intensifying the output.

摘要翻译： 在本发明的负压增压装置中，当以正常速度按压踏板时，输入轴11和阀柱塞10向前移动以关闭真空阀15并打开大气阀16和动力活塞5， 阀体4和输出轴24向前移动。 在操作的初始阶段，钩27c和31a彼此不接合，使得圆柱形构件27不向前移动，从而与常规的相比缩短了输入轴11的行程。 当踏板快速按压时，按压面10a按压按压面27e，使卡合臂部27b变形，从而将钩27c和31a彼此分离。 圆柱形构件27通过弹簧30向后移动以推动真空阀部分12b，使得大气阀部分12a与大气阀座14间隔开，比制动的行驶更快，从而增加跳跃量 迅速加剧产出。

公开(公告)号：US20030116194A1

公开(公告)日：2003-06-26

申请号：US10308371

申请日：2002-12-03

申请人： BOSCH AUTOMOTIVE SYSTEMS CORPORATION

发明人： Masayori Ishimoto

IPC分类号： F16L007/00

CPC分类号： F04B53/109 ,  F04B1/0452 ,  F05C2253/12 ,  Y10T137/7036

摘要： There is provided a fuel supply pump that is capable of keeping the function of an outlet valve thereof normal over a long time period even when a low lubricity fuel is used. The fuel supply pump has an outlet valve slidably inserted in an insertion hole formed in a valve body, for opening and closing the insertion hole. The outlet valve is coated by CVD coating.

摘要翻译： 提供一种即使在使用低润滑性燃料的情况下也能够使出口阀的功能在长时间内保持正常的燃料供给泵。 燃料供给泵具有可滑动地插入形成在阀体中的插入孔中的出口阀，用于打开和关闭插入孔。 出口阀涂有CVD涂层。

公开(公告)号：US20010052555A1

公开(公告)日：2001-12-20

申请号：US09851022

申请日：2001-05-08

申请人： Bosch Automotive Systems Corporation

发明人： Kouji Sato

IPC分类号： B05B001/26 ,  F02M051/00

CPC分类号： F02M61/1813 ,  F02B2075/125 ,  F02M51/061 ,  Y02T10/123

摘要： The present invention provides an electromagnetic fuel injection valve having a simple and efficient constitution for enabling the jets 23 themselves from injection orifices to cool and wash off the nozzle body 13, and to suppress or remove carbon deposits that is produced and adhere to the injection orifices. In an electromagnetic fuel injection valve, which injects a high-pressure fuel as a flat-shaped spray 21 (fan spray) by causing the jets 23 to impinge on one another after being injected from at least a pair of injection orifices, the constitution is such that, with the aim of causing jets 23 to impinge, by controlling the pressure and direction of the jets 23, so that the jets 23 also go to, in addition to a normal injection direction which goes toward the direction of the combustion chamber 4, also to the opposite direction (upstream side) which goes toward the direction of the bottom surface of the combustion chamber side of the nozzle body 13, the jets 23 resulting from fuel injected from injection orifices impinge on one another, and a flat-shaped spray 21 is diffused in the direction of the combustion chamber 4, and, in addition, also diffused in the direction of the nozzle body 13 on the upstream side thereof (upstream side diffusing portion 21C).

摘要翻译： 本发明提供了一种电磁燃料喷射阀，其具有简单且有效的结构，使得射流23本身能够从注射孔中冷却和冲洗喷嘴体13，并且抑制或去除产生并附着在喷射孔上的碳沉积物 。 在电磁燃料喷射阀中，其通过在从至少一个喷射孔喷射之后使喷射流23彼此撞击而喷射高压燃料作为平面喷雾21（风扇喷雾），其结构为 为了通过控制喷射流23的压力和方向来引起喷射23撞击的目的，使得除了朝向燃烧室4的方向的正常喷射方向之外，喷嘴23也进入 ，也朝向喷嘴体13的燃烧室侧的底面的方向的相反方向（上游侧），由喷射孔喷射的燃料产生的喷射23相互撞击，并且形成为扁平状 喷雾21在燃烧室4的方向上扩散，另外也在喷嘴体13的上游侧（上游侧扩散部21C）的方向上扩散。

公开(公告)号：US20010042800A1

公开(公告)日：2001-11-22

申请号：US09829556

申请日：2001-04-10

申请人： Bosch Automotive Systems Corporation

发明人： Kouji Sato

IPC分类号： F02M051/00

CPC分类号： F02M61/1813 ,  F02M61/1853

摘要： The present invention provides an electromagnetic fuel injection valve, is capable of lowering fuel consumption and reducing emissions by promoting the mixing of injected fuel with air, and, in addition, is capable of obtaining numerous variations in spray or injection quantity, as the result of reduced emissions by promoting combustion via the atomization of injected fuel. It is a novel electromagnetic fuel injection valve, which has been designed, focusing on devising specifications for injection orifices 14, 15, for example, the attitude or angle of inclination, shape, and number thereof, and is constituted such that jets of fuel injected from injection orifices 14, 15 are made to impinge upon one another, and are injected as a flat-shaped spray 17, being characterized in that the angles of inclination null of the injection orifices 14, 15 relative to the axis 5C of a needle valve 5 are made to differ from one another.

摘要翻译： 本发明提供一种电磁燃料喷射阀，其能够通过促进喷射的燃料与空气的混合来降低燃料消耗和减少排放，并且另外，能够获得喷雾或喷射量的许多变化，结果是 通过喷射燃料的雾化促进燃烧来减少排放。 它是一种新型的电磁燃料喷射阀，其设计重点在于设计注射孔14,15的规格，例如倾斜角度，形状和数量的姿态或角度，并且构成为使得喷射的喷嘴 从注射孔14,15彼此撞击，并且被注入为平面形状的喷雾17，其特征在于，注射孔14,15相对于针阀5C的轴线5C的倾斜角度θ 5彼此不同。

公开(公告)号：US20030192509A1

公开(公告)日：2003-10-16

申请号：US10408864

申请日：2003-04-07

申请人： Bosch Automotive Systems Corporation

发明人： Masayori Ishimoto

IPC分类号： F02M001/00

CPC分类号： F02M59/105 ,  F02M37/0047 ,  F02M55/00 ,  F02M57/025 ,  F02M59/34 ,  F02M63/0225

摘要： An object of the present invention is to provide an accumulator fuel injection system comprising a pressure increasing unit 7 and a pressure increasing common rail 6, in which leaked fuel is recirculated from a high pressure side to a low pressure side, and which is capable of reducing the amount of fuel that must be delivered under pressure by a low pressure pump 3. The focus of the present invention is to return high pressure leaked fuel to between the low pressure pump 3 and a high pressure pump 5. The accumulator fuel injection system of the present invention comprises the low pressure pump 3 for delivering fuel under pressure from a fuel tank 2, the high pressure pump 5 for changing the fuel from the low pressure pump 3 into high pressure fuel, an accumulator (common rail) 6 for accumulating the high pressure fuel from the high pressure pump 5 at a predetermined pressure, an injector 8 which is connected to the accumulator 6 for injecting the high pressure fuel, and the pressure increasing unit 7 which is provided between the injector 8 and the accumulator 6 for further increasing the pressure of the high pressure fuel. Leaked fuel from the pressure increasing unit 7 may be recirculated to the downstream side of the low pressure pump 3 through a unit leakage passage 17.

摘要翻译： 本发明的目的是提供一种蓄能器燃料喷射系统，其包括增压单元 7 和增压共轨<6> ，其中泄漏的燃料从 高压侧到低压侧，并且能够通过低压泵 3减少必须在压力下输送的燃料量。 本发明的重点是将高压泄漏的燃料返回到低压泵 3 和高压泵 5之间。 本发明的蓄能器燃料喷射系统包括用于在燃料箱 2的压力下输送燃料的低压泵 3 ，高压泵 5 ，用于将低压泵 3 中的燃料更换为高压燃料，累加器（共轨） 6 ，用于从 在预定压力下的高压泵 5 ，连接到用于喷射高压燃料的蓄压器 6 的喷射器 8 增加喷射器 8 和累加器 6 之间的单元 7 ，以进一步增加高压燃料的压力。 通过单元泄漏通道17，可以从增压单元 7 中泄漏的燃料再循环到低压泵 3 的下游侧。

公开(公告)号：US20030121407A1

公开(公告)日：2003-07-03

申请号：US10232320

申请日：2002-09-03

申请人： BOSCH AUTOMOTIVE SYSTEMS CORPORATION

发明人： Yoshiyasu Takasaki ,  Hidefumi Inoue

IPC分类号： F15B009/10

CPC分类号： B60T13/52

摘要： In a negative pressure boosting device 1 of the present invention, a movable valve seat 28 is air-tightly and slidably disposed in a concavity of a valve body 4. The movable valve seat 28 and a valve element 12 compose a vacuum valve 15. The movable valve seat 28 and a control spring 29 compressed and disposed between the movable valve seat 28 and the valve body 4 compose a servo ratio changing means. The servo ratio changing means is provided on a valve mechanism (the vacuum valve 15). During operation, the valve element 12 comes in contact with the movable valve seat 28. However, the movable valve seat 28 does not move in a low-input range so that the servo ratio in this state is relatively large ratio i.e. the servo ratio for the normal operation. In the high-input range, the control spring 29 starts to be compressed to allow the movement of the movable valve seat 28, thereby changing the servo ratio to a small servo ratio. In this manner, the improvement of nullcontrollability of brakesnull in a low-input range and the improvement of nullstiff feelingnull in a high-input range are compatible.

摘要翻译： 在本发明的负压增压装置1中，可动阀座28气密地且可滑动地设置在阀体4的凹部中。可动阀座28和阀元件12构成真空阀15。 压缩并设置在可动阀座28和阀体4之间的可动阀座28和控制弹簧29组成伺服比改变装置。 伺服比改变装置设置在阀机构（真空阀15）上。 在操作期间，阀元件12与可动阀座28接触。然而，可移动阀座28不在低输入范围内移动，使得在该状态下的伺服比相对较大，即伺服比为 正常运行。 在高输入范围内，控制弹簧29开始被压缩以允许可移动阀座28的运动，从而将伺服比改变为较小的伺服比。 以这种方式，在低输入范围内提高“制动器的可控制性”以及在高输入范围内“刚性感”的提高是兼容的。